Mollman Dam

TR S. FORK GRAND RIVER· Perkins, South Dakota· Built 2002· Earth· 26 ft tall
Low Hazard Fish And Wildlife Pond Fire Protection Stock Or Small Fish Pond Private

Key Takeaway

Mollman Dam is classified as low hazard in South Dakota. It was completed in 2002 and is 24 years old. Its primary use is fish and wildlife pond.

Physical Details

Dam Height 26 ft (taller than 65.2% in SD)
Dam Length230 ft
Dam TypeEarth
Max Storage56 acre-ft
Normal Storage44 acre-ft
Surface Area4 acres
Max Discharge675 cfs
Year Completed2002 (24 years old)
NID IDSD02526

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: No
Last Inspection: April 6, 2004
State Regulated: Yes
Regulatory Agency: DANR

Ownership

WILLIAM MOLLMAN

Private

Nearby Dams

George Jesfjeld

Perkins, SD

Low Hazard 18 ft

Simpson Bros.

Perkins, SD

Low Hazard 19 ft

White Hill Dam

Perkins, SD

Low Hazard 23 ft

Morris Hamilton

Perkins, SD

Low Hazard 30 ft

Harold Hedstron

Perkins, SD

Low Hazard 26 ft

Robert Week

Perkins, SD

Low Hazard 18 ft

Lodgepole Dam

Perkins, SD

Low Hazard 25 ft

Muth Dam

Perkins, SD

Low Hazard 19 ft

Frequently Asked Questions

What is the hazard classification of Mollman Dam?

Mollman Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Mollman Dam?

Mollman Dam is owned by WILLIAM MOLLMAN (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Mollman Dam built?

Mollman Dam was completed in 2002, making it 24 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

What is the primary purpose of Mollman Dam?

Mollman Dam serves the following purposes: Fish And Wildlife Pond, Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Mollman Dam?

Mollman Dam has a dam height of 26 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.

When was Mollman Dam last inspected?

Mollman Dam was last inspected on April 6, 2004. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.